The Fab Four (opens in new tab) have made up. The Cambridges and the Sussexes (opens in new tab) have reportedly exchanged Christmas gifts from afar in what royal experts are calling a sign of a Christmas "truce."

Prince Harry and Meghan Markle (opens in new tab) sent gifts to Prince William and Kate Middleton (opens in new tab) and their children, Prince George, 7, Princess Charlotte, 5, and Prince Louis, 2 (opens in new tab)

"The children are now in the hospital.

According to the Daily Mail (opens in new tab), Will and Kate returned the gesture and sent gifts to Harry and Meghan and their 17-month-old son Archie (opens in new tab).

"Harry sent gifts to William and Kate, and the calligraphy was done by Meghan," explained royal biographer Andrew Morton, author of "Diana: Her True Story" (opens in new tab), and Harry "will be talking to his father and brother at Christmas." He added.

And the calligraphy, courtesy of Meghan, was apparently not limited to adult gifts. The Daily Mail reports that she also wrote personalized messages to her nieces and nephews with Harry.